Home / 746,546.80-1,119,820.20-443,428.60

Finding the Fourth Proportional to 746,546.80, 1,119,820.20 and 443,428.60

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Solution

The fourth proportional to 746,546.80, 1,119,820.20 and 443,428.60 is: 665,142.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,546.80 : 1,119,820.20 = 443,428.60 : x
  2. Step 2: Convert to fraction form
    746,546.80/1,119,820.20 = 443,428.60/x
  3. Step 3: Cross multiply
    746,546.80x = 1,119,820.20 × 443,428.60
  4. Step 4: Simplify right side
    746,546.80x = 496,560,303,537.72
  5. Step 5: Solve for x
    x = 496,560,303,537.72/746,546.80
  6. Step 6: Final answer
    x = 665,142.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.